Direct answer
On the covered LG refrigerator, Lo means a warning that the ambient temperature has dropped below −10 °C — LG's own wording. LG notes the product will not function optimally in an environment that cold. First, check the room temperature where the refrigerator is installed.
Definition versus diagnosis
The display names a detected condition—not an automatically failed part.
What this covers
- LG refrigerator covered by the cited source
- Displayed code or documented alias: Lo
- The exact operating state described by the manufacturer
What it does not cover
- ×Another product type or original-manufacturer platform
- ×A visually similar but different code
- ×Internal live electrical, sealed-system, gas, battery-cell or control-board repair
Match every character and the exact product
ReversiblePhotograph the complete display and product label. This record covers Lo on LG French-door, side-by-side, bottom-freezer and top-freezer refrigerators; display format and available customer checks vary by model.
Preserve the failure state
ReversibleCheck the room temperature where the refrigerator is installed. Record the operating stage, recent change and what still works before clearing the message.
Correct only the documented fault domain
ReversibleMove the appliance somewhere within its rated ambient range; there is nothing to repair in the refrigerator itself. Do not borrow a reset or meaning from a similar code, product or model year.
Verify once, then respect the service boundary
ReversibleRepeat only the shortest safe action that reaches the original stage. If Lo returns, stop repeated resets and use model-specific manufacturer support.
Evidence ledger
Sources behind this answer
Visible sources support the visible claims. Home Product Support records the publisher, the fact used and the review date; community reports can suggest an issue but do not become a published fact on their own.
Exact questions
Common follow-ups
What does Lo mean on a LG refrigerator?+
a warning that the ambient temperature has dropped below −10 °C — LG's own wording. LG notes the product will not function optimally in an environment that cold.
Can I reset Lo without fixing the cause?+
A reset may hide the display temporarily but does not correct the documented fault. Record the code and complete only the safe checks first.
Why is the complete model number required?+
Manufacturers reuse characters across platforms. The model number determines which official table, controls and service boundary apply.
When should I stop?+
This is an installation-environment warning, not a fault. Garages and outbuildings are the usual cause.
Answer for the exact device and software version shown above.